P W " I W L E X " Wiesław Leśniewski

27.12.Z - Manufacture of electrical distribution and control apparatus

33.14.Z - Repair and maintenance of electrical devices

33.20.Z - Installation of industrial machinery, equipment, and devices

42.21.Z - Works related to the construction of transmission pipelines and distribution networks

42.22.Z - Works related to the construction of telecommunications and electrical lines

43.21.Z - Installation of electrical systems

43.22.Z - Installation of plumbing, heating, and air-conditioning systems

43.29.Z - Specialized construction works

43.34.Z - Painting and glazing

46.51.Z - Wholesale trade

46.52.Z - Wholesale trade

46.63.Z - Wholesale trade of machines used in mining, construction, and civil and water engineering

46.69.Z - Wholesale trade

62.01.Z - Activities related to programming, IT consulting, and related activities

62.02.Z - Activities related to programming, IT consulting, and related activities

62.09.Z - Activities related to programming, IT consulting, and related activities

71.11.Z - Architectural activities

71.12.Z - Engineering activities and related technical consultancy

71.20.B - Inspection and issuing opinions on the technical condition of chimneys and ventilation ducts

74.90.Z - Other professional, scientific and technical activities, not elsewhere classified

80.20.Z - Detective and security activities

85.59.B - Courses and training for acquiring knowledge, skills, and professional qualifications in non-school forms